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Finding the Fourth Proportional to 625.36, 860.88 and 537.52

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Solution

The fourth proportional to 625.36, 860.88 and 537.52 is: 739.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.36 : 860.88 = 537.52 : x
  2. Step 2: Convert to fraction form
    625.36/860.88 = 537.52/x
  3. Step 3: Cross multiply
    625.36x = 860.88 × 537.52
  4. Step 4: Simplify right side
    625.36x = 462,740.22
  5. Step 5: Solve for x
    x = 462,740.22/625.36
  6. Step 6: Final answer
    x = 739.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.